Elevator



Pateted Oct. 13, 1885.

Imm-INTER im I d d a; R. F. DAMJING.

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i i l UNITED STATES i `i i til ift PATENT OFFICE.

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HENRY M. DARLING AND ROBERT F. DARLING, OF LINWOOD, OHIO.

ELEVATO R.

SPECIFICATION formir'ig'partl of Letters Patent No. 328,294, datedOctober 13l 1885.

Application filed January 26, 1R85. Serial No. 153,981. (No modell To@ZZ whom it may concern: n

Be it known that we, HENRY M. DARLING and ROBERT F. DARLING, bethcitizens of the United States, residing at Linwood, in the county ofHamilton and State of Ohio, have invented certain new and usefulImprovements in Elevators, of which the following is a specification.

Our invention consists in devices by means of which the elevator-car maybe stopped at the proper place for each landing; in devices whereby theelevator-door may be automatically opened as the car reaches the landingand closed as the ear leaves the landing, and in means for throwing outof engagement the mechanism which actua-tes the door when it is desiredto pass a. landing without stopping.

In the drawings, Figure lis a front view showing an elevator-carembodying ourinvention as it is about reaching a landing. Fig. 2 is asection on the line x as of Fig. l, showing in elevation mechanism whichstops the car and opens the door. Fig. 3 is a detail of a portion of themechanism shown in Fig. 2.

A represents an elevator-car, and B the door of the car.

O is the actuating rod or cable, provided at suitable points'wth stopsor buttons c, one for each landing. These buttons should be madetapering at the top and bottom to permit them to readily pass throughtherings a a, secured to the car, which serve as guides for the cable orrod C. The side of the car in which the dotli is placed is preferablymade with a double wa i i At a suitable point in the wal-l of the car,in the rearof the travel of the door, is mounted a shaft, D, having atits outer end a forked crank-arm, d, adapted to engage with theactuating rod or cable. To the other end is attached a suitableactuating device, shown here as a hand-wheel, d', hereinafter called theshipping wheel.7 The actuating rod or cable, sometimes called thehand-rope, may be connected with belt-shifting mechanism of the typeshown in Letters Patent No. 302,325,I

granted us July 22, 1884, for, improvement in elevators, or with abrake, as in the well-t` known Otis elevator, or with any devices forstarting and stopping the elevator-car which are adapted to be actuatedby the upward and downward movement ofthe hand rope or rod.

Vhen it is desired to stop at a landing, the ,shaft D is revolved bymeans of the shippingwheel d until the forked arm d embraces the g Dwhenever releasedfrom Contact with a button on. the actuating-rod.

E is a bent lever, fulcrulned at e, the long end of which is providedwith a pin, c', adap ted toengage with a notch, b, in the free end of anarm, 11. whose other end is pivotallyat taehed to the car-door. Theshort end of the leverarm E is adapted to engage with and be actuated bya series of cams, F, one for each landingupon the walls or uprights ofthe,ele A iJgitor-'well in the path of the lever-arm. The lower face ofthese cams should slope downward. The upper face is preferably, but notnecessarily, substantially horizontal. In the form shown the short endof the lever-arm carries a ,weighted roller, e. As the car movesthe`roller is carried therewith up and down the elevator-wall at aslight distance therefrom. As thecar reaches a landing the rollerengages with a cam, and, together withl the short end ofthe lever-arm,isforced inward by the'eam, thus moving the long end of the lever-armoutward and opening the door` of the car. The cams should be so placedthat the door will be fully opened as the car stopsV at the landing,andheld open until the car has again started, when the roller, which shouldbe made sufficiently heavy to overcome the resistance of the car-door,returns to its nor-.

mal position, thereby closing the door.

.',As it is often desirable to pass a landing without stopping, and thedoor should always he closed while the car is in motion, provisionshould `Joe inade for throwing the mechanism which opens and closes thedoor out of engagement when a floor is to be passed without stopping.For this purpose a lug, d, is mount-l ed upon the opposite side of theshaft D to l fr i l* 2 l the cranhL-allfm d ilin 4the s mul ifelrticallIplane with the mit b', the une oltrave ofvwhich is immediately abovethe sh ft D. When the forked arm is in engagement with theactuating-rod, the lug d will be thrown out of the path of the arm b;but when the forked arm is in its position of rest the lug will assume aperpendicular position, thereby raising the arm b and throwing it out ofengagement with the pin e', allowing the car to pass the landings wihout opening the doors until the shaft is revolved and the forked armagain thrown into engagement with the actuating= rod.

To prevent the lever E from being thrown out of position by the weightof the roller when it is disengaged from the arm b', stop, F is fixed ata suitable point in the car-wall. It is obvious that a spring may beused in place of a weight er lweighted roller to return the'lever-arm toits normal position. y

We do not limit ourselves to the specific means herein shown forconnecting the leverarm with the door, as it 's apparent that a skilledmechanic could readily supply one or more substitutes therefor.

Some of the features herein described and claimed were shown and claimedin our application for Letters Patent for an improvement in elevators,filed October 16, 188e, Serial No. 145,631, andthe present application,so far as it relates to said features, is a continuatien of said formerapplication.

1. As an improvement in elevators, the combination, substantially asdescribed, of one or more cams with a lever connected with the door ofanelevator, and at its free end adapted to engage with and be actuated bya earn as the car reaches a landing, thereby opening the door. I

2. As an improvementin elevators, the combination of one or mere camsand a lever connected at one end with the door of an elevator, adaptedat its free end `to `salga e with and be actuated by a cam, therebyopening the door, and automatically restored to its normal position asthe car leaves the landing, thereby closing the door.

3. As an improvement in elevators, the combination of one or more cams,with a lever connected at one end with the door of an elevator, andcarrying at its free end a weighted leaves the landing and the rollerpasses the cam, thereby closing the door.

if; Il Il i lll l i 4. rlhe combination of one or-more cams and a leverlink-connected to the door of the elevator, and adapted at its free endto engage with a cam as the car reaches a landing, thereby opening thedoor, with a shipperadapted to throw the mechanism which opens the doorout of engagement when a door is to be passed without stopping.

5. The combination, with a series of cams upon the wall of anelevator-well, of a bent lever, one end of which is linkconnected to thedoor of the elevator-car, carrying at its free end a Weighted rolleradapted to engage with a cam as the car reaches a landing, therebyopening the door, and to return to its normal position as'the car leavesthe landing and he roller passes the cam, thereby` closing the oor.

6. The combination, with a series of buttons upon the, actuating rod orcable of an elevator, of a shipping-wheel mounted upon a shaft, whichalso carries a forked crank-arm adapted, when said shippingwheel isrotated in one direction, to embrace the actuating rod or cable toengage with the buttons thereon, thereby stopping the car, and whenrotated in the opposite direction to engage with the opposite face ofthe button, thereby starting the car.

7. The combination of a series of cams upon the wall of anelevator-well, and a lever adapted at one end to engage with an armpivotally attached to the door of the elevator-car, with ashipping-wheel adapted when at rest to hold the pivoted arm out ofengagement with the lever, .substantially as and for the purposespecied.

8; In combination with a series of buttons upon the actuating rod orcable of an elevator, a series of cams upon the wall of an elevator-Well, a lever adapted at one end to engage with Said cams, and at theother end adapted to engage with an arm pivotally attached to the doorof an elevator-car, a shipping-wheel mounted upon a shaft carrying alforked crank -arm adapted to embrace the actuating rod or cable, andwhen in position to engage with the buttons thereon,l and carrying alsoa lug adapted, when in its position of rest, to hold the pivoted arm outof engagement with the lever, substantially as and for the purposespecified.

HENRY M. DARLING. ROBERT F. DARLING.

Witnesses:

FRANK W. BURNHAM, LEONARD VAssALL.

IOO

